The Ranger Force: Darby's Rangers in World War II by Colonel Robert W. Black is a military history about an elite unit, free courtesy of publisher Stackpole.

Currently free @ Amazon (not available to Canadians). Unlikely to show up elsewhere, as Stackpole freebies have traditionally been Amazon-only.

Description• One of the most famous units of World War II and all of military history
• First Americans to see active combat in the European theater
Expands on events described in Rick Atkinson's An Army at Dawn and The Day of Battle

In this gripping companion to his acclaimed The Battalion (978-0-8117-0184-6), which told the story of the 2nd Ranger Battalion in World War II, Robert W. Black turns his attention to the 1st, 3rd, and 4th Ranger Battalions, otherwise known as Darby's Rangers. These elite soldiers accompanied British commandos on the failed Dieppe Raid in August 1942, participated in Operation Torch in North Africa three months later, battled across Sicily the following summer, and ended the war in Italy, where they landed at Salerno in September 1943 and Anzio in January 1944 and were decimated at the Battle of Cisterna.